Shigeru Umeno — 17 Patents at Sumco

Shigeru Umeno has been granted 17 US patents while listed as an inventor at Sumco. The first was granted in 2002 and the most recent in September 2021. Shigeru Umeno ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Shigeru Umeno in Tokyo, JP.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date
11121003	Method of predicting thermal donor formation behavior in silicon wafer, method of evaluating silicon wafer, and method of producing silicon wafer	Kazuhisa Torigoe, Toshiaki Ono	2021-09-14
11094557	Silicon wafer	Toshiaki Ono	2021-08-17
10177008	Silicon wafer and method for manufacturing the same	Takashi Nakayama, Takeo Katoh, Kazumi Tanabe	2019-01-08
9412622	Epitaxial silicon wafer and method for manufacturing same	Toshiaki Ono	2016-08-09
8771415	Method of manufacturing silicon single crystal, silicon single crystal ingot, and silicon wafer	Keiichiro HIRAKI, Hiroaki Taguchi	2014-07-08
8617311	Silicon single crystal wafer for IGBT and method for manufacturing silicon single crystal wafer for IGBT	Toshiaki Ono, Wataru Sugimura, Masataka Hourai	2013-12-31
8460463	Silicon wafer and method for producing the same	Manabu Nishimoto, Masataka Hourai	2013-06-11
8231852	Silicon wafer and method for producing the same	Wataru Itou, Takashi Nakayama, Hiroaki Taguchi, Yasuo Koike	2012-07-31
8105436	Single crystal silicon wafer for insulated gate bipolar transistors and process for producing the same	—	2012-01-31
7846252	Silicon wafer for IGBT and method for producing same	Yasuhiro Oura, Koji Kato	2010-12-07
7629054	Single crystal silicon wafer for insulated gate bipolar transistors	—	2009-12-08
7563319	Manufacturing method of silicon wafer	Masataka Hourai, Masakazu Sano, Shinichiro Miki	2009-07-21
7344689	Silicon wafer for IGBT and method for producing same	Yasuhiro Oura, Koji Kato	2008-03-18
7288791	Epitaxial wafer and method for manufacturing method	Satoshi Murakami, Hirotaka Fujii	2007-10-30
7014704	Method for growing silicon single crystal	Toshiaki Ono, Tadami Tanaka, Eiichi Asayama, Hideshi Nishikawa	2006-03-21
6641888	Silicon single crystal, silicon wafer, and epitaxial wafer.	Eiichi Asayama, Masataka Horai, Shinsuke Sadamitsu, Yasuo Koike, Kouji Sueoka +1 more	2003-11-04
6365461	Method of manufacturing epitaxial wafer	Eiichi Asayama, Masataka Hourai	2002-04-02

Shigeru Umeno — 17 Patents

Issued Patents All Time

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